#include<stdio.h>

__int64 mod=1000000007;

__int64 ans[1000001];

int main()
{
    ans[0]=1; ans[1]=1;
    int i;
    for(i=2;i<=1000000;i++)
        ans[i]=(ans[i-1]+(i-1)*ans[i-2])%mod;
    int cases,r=1;
    scanf("%d",&cases);
    while(cases--)
    {
        int n;
        scanf("%d",&n);
        printf("Case #%d:\n%I64d\n",r++,ans[n]);
    }
    return 0;
}